Class 1 horse fence. Square Deal Knot non-climb. Top and bottom gauge: 10. Filler wire: 12-1/2. Rigid fencing yet flexible construction makes this ideal for installation over rolling meadows or hilly terrain. Superior strength and closely woven 2 inch x 4 inch vertical mesh pattern is specifically designed to prevent horses, cows, or hoofed animals from stepping through or walking down. 100 foot roll.